CVE-2025-66719

CriticalCVSS 9.1/10Last modified Jun 17, 2026

Description

An issue was discovered in Free5gc NRF 1.4.0. In the access-token generation logic of free5GC, the AccessTokenScopeCheck() function in file internal/sbi/processor/access_token.go bypasses all scope validation when the attacker uses a crafted targetNF value. This allows attackers to obtain an access token with any arbitrary scope.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-863

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/free5gc/free5gc/issues/736Exploit, Issue Tracking
https://github.com/free5gc/nrf/pull/73Issue Tracking, Patch

Timeline

Published: Jan 23, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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